대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)

대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
권호 표지

MR 영상의 영역분할기반 웨이블렛 부호화방법

Segmentation-based Wavelet Coding Method for MR Image

  • 문남수 (서울대학교 전기공학부 뉴미디어공동연구소) ;
  • 이승준 (서울대학교 전기공학부 뉴미디어공동연구소) ;
  • 송준석 (서울대학교 전기공학부 뉴미디어공동연구소) ;
  • 김종효 (서울대학교 의과대학 방사선과학교실) ;
  • 이충웅 (서울대학교 전기공학부 뉴미디어공동연구소)
  • Moon, N.S. (Institute of New Media and Communications, Electrical Engineering, Seoul National Univ.) ;
  • Lee, S.J. (Institute of New Media and Communications, Electrical Engineering, Seoul National Univ.) ;
  • Song, J.S. (Institute of New Media and Communications, Electrical Engineering, Seoul National Univ.) ;
  • Kim, J.H. (Department of Radiology, College of Medicine Seoul National Univ.) ;
  • Lee, C.W. (Institute of New Media and Communications, Electrical Engineering, Seoul National Univ.)
  • 발행 : 1997.05.23
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초록

In this paper, we propose a coding method to improve compression efficiency for MR image. This can be achieved by combining coding and segmentation scheme which removes noisy background region, which is meaningless for diagnosis, in MR image. The wavelet coder encodes only diagnostically significant foreground regions refering to segmentation map. Our proposed algorithm provides about 15% of bitrate reduction when compared with the same coder which is not combined with segmentation scheme. And the proposed scheme shows better reconstructed image Qualify than JPEG at the same compression ratio.

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